Microplastics analysis using FTIR and Infrared Microscope system 

Microplastics are classified into primary microplastics and secondary microplastics. Primary microplastics are manufactured as materials for use in scrubs and industrial abrasives and are often made of polyethylene (PE) or polypropylene (PP). Secondary microplastics refer to plastics that have been broken down from larger debris into pieces with a diameter of 5 mm or less due to external factors such as ultraviolet radiation and the types of such plastics are various.
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